Supports – Brackets – Specially mounted or attached
Patent
1992-03-18
1994-01-18
Scherbel, David A.
Supports
Brackets
Specially mounted or attached
200294, 361635, 361652, H02B 104
Patent
active
052794873
ABSTRACT:
A bolt-on, duplex circuit breaker having an external, integrally formed key member designed with a truncated pyramidal shape. The pyramidal shape is used to discourage tampering aimed at its removal. A panelboard into which bolt-on, duplex circuit breakers are mounted having mounting rails onto which the circuit breakers are disposed. The mounting rails have cooperating, key member accepting notches that act in conjunction with the key member integrally formed upon the circuit breaker for limiting the number of bolt-on, duplex circuit breakers that are insertable within the panelboard.
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U.L. Requirements--Oct. 12, 1988, Sections 12.12-12.31 of U.L. 67 "Panelboards".
Carrodus Melvin A.
Mrenna Stephen A.
Berger Derek J.
Jarosik Gary R.
Scherbel David A.
Westinghouse Electric Corp.
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